Why does the computer automatically restart when there is no virus?

There may be a problem with the power supply.

It's generally a virus.

You check the Trojan again, change the antivirus software!!

It's simple, not as exaggerated as the 2nd floor. It's possible to accidentally bump into the plane!

<>1. Viruses invade the computer.

After some viruses invade the computer, the computer will be controlled to turn on again after shutting down, or the computer will be automatically turned on due to the remote control of hackers.

2. There is an error in the computer system.

In the XP system, if there is a problem with the system, the computer may automatically boot up, this system error often occurs when the computer is shut down, resulting in a problem with the computer shutdown, which is easy to cause the computer to restart automatically.

3. Computer hardware problems.

The computer grinds for too long and the heat dissipation is poor, or the computer graphics card and network card are not in good contact, which may cause the computer to turn on automatically.

4. The user has set the computer to automatically start.

This situation means that the user has set up the computer to automatically turn on, and then the user forgets it and mistakenly thinks that there is a problem with the computer, or it may be that the user accidentally sets the automatic boot and does not know it.

The auto-reboot is nothing more than a system and hardware issue:

1.If the memory module is loose or the gold finger is oxidized, wipe the memory module with an eraser and then install it back.

2.If the graphics card is in poor contact, reinsert the graphics card and fix it.

3.The motherboard capacitor is faulty, take it to the test.

4.If the system files are lost or tampered with by viruses, repair the system with a 360 first aid kit or repair the system with a fully installed system disk.

Since the landlord's system has been reinstalled, it is likely to be a problem with the motherboard, but this situation is generally rare, and I have only encountered it a few times in the factory as a network manager.

The auto-reboot at boot is not necessarily a virus issue. Landlords can install the latest anti-virus software to fully disinfect the virus. In addition, when the computer restarts, you can touch whether the host is overheated, or it may be a hardware problem, and the landlord can contact the computer to repair and check the hardware.

Is the CPU fan not turning? If the temperature is too high, it will restart.

If it is not a fan problem, it is recommended to reinstall the system to see.

It could be a jumper issue on the motherboard. My friend has also come across it.

Right-click on the My Computer Property in the Advanced, Boot & Recovery settings to cancel the checkmark before system failure and auto-restart. Repair the system again.